Because of the difference in location, it can result in the use of different features. For this reason , we made it possible to distinguish which sensor detected a problem.

2. For PIR sensors; we really do not recommend that you place it at the door. The most common placement of PIR sensors is near a lamp or in the walkway, because it's used to conserve energy and only turns on lights when it detects the presence of a person. For home-security use, you may have some rooms or hidden compartments designed to hide your valuable belongings; things you do not want other people to have access to and want to keep track of. This is when the PIR sensors comes in handy. Simply attach a sensor near your valuables, and its battery power will last for a year or so. Because these places are only occasionally accessed.

We did this in the Ningbo exhibition display, using the same method and were very successful. We know PIR sensors, and where to place them.